Fuse device.



u A Hinz FUSE JEVICE'.v

APPLCATIMI FILED I MIIfZB. 19H.

MEET l.

I atented Apr. ETS-S y asn:

A. HERZ.

FUSE DEVICE.

APrLlcArlon min um. 2l; 19H.

3 SHEETS-SHEET 2.

1,222,952. 4 Fatemi Apr. 17,1917.` 4

mnu

A. HERZ.

FUSE` DEVICE.

APPLICATION msn mnu. 1an.

3 SHEETS-SHEET 3 Pate ated Apr 17, 1917.

M WM i Y STATES FFICE,

um nsiaz, or omesso, ruimere, estenos or oirn-,HALF 'ro nmt'umi ol Yscnwmrznn, or omesso, rumors.

` Fuss Diarios.

To au slimy my ennemi zen-'ffthe United states, residing at chi;

l to, thef-z-uccompanyi'ng drawings, forming o,A

part of this specification. I

f Myfinventio'n rela-tes to' fuse devices, that is devices or apparatusembodyingor re'- latine:v to fusesorlike devices for operation 'onexcess or`overloaded' current..

^ 20pr`ope'r protection of the devices nga'inst r The objectofthepresent inventionis to provide certain advantageous features indamage or injury upon the operationof vthe fuse, adaptation ofthemechanism for ywith.-

B'pecitlcation et Letters intent.

Appumion inea January as, 1911. l serial no. messe ,Patented np member 1to formthe complete device; '.The

base member 1 is provided with n socket'B adapted to rec sive the plugor portion 4 on tha top member lle-socket 3 -is widened al its top, asshown inV F ig.= 1,

and terminal clips i6-'6, Figs.= 1 ,3:and are'secured as by screws 7;7into -the;en larged portions at therupper end or'fmouth of the socketIES." "These terminal clpsznlre 4standingcurrents from high capacitygenerntors, rt-he arran-ger'nentV for. 'easily con`V 4-structng,`mounting, A lrepairing Lund.' reequippmg ofthe device and-theyaccomplishment of the foregoingnd other desirable results in n`simplennd expeditious manner. "In tivo ap hcations Aheretofore led'jbychweitzer and myself, to-wit SerilfNo. 5171,719, filed@V ugust4 2G',1909, bothi fors'fuse devices, there arershown cerfl i tuinstructures'oL-this general type.. which sectionftaken on line 2 2-inFig-. `1;AV Ei-g.:3

-isye horizontal section Vtekenen lined-3 1n fof ylfilg. is arrievvfoi adetail-of constfrnc-`v device l shown@ mi is, e .c ross sectionofsporti() effe-1e device ber 2, 'adept-.ed to coperte vwith the base:

Alprill 3, 1907, and;

-blade c to fit 'into theso c ke'ts or recesses of the termi `nals 6 6,-these knrfeblade clipshaving upf vward extensions `13---13, which aresecuredto referabl boxlike, metallic structnreszhavlng side' ips,88.,rformin4 Awith .the main body portions spring j aWs o'r the'reception of metallic con tacts These terminal-ls 6-6 rojeetinigv'receive the pi'gzail conductors 10-10, to be connectedwiththe device,andere further conductors are heldin place. 4 l

The plug mel uber 2 is-iprovidediwith knife ips 12- L2, Flg. 4,' whichere adapted the plug porticn of said member by screw-s 14,-14. These'clips 'l2-12eme, also Vpro-l vided with bent back eers-.-15,- FigrfQ,pro- Vvi ed with terminalv-s'creWs- 16 for theat- 4 tac ment r ofthefusef 17,. Fig, 1*.;V The rtop.

member, it wi1 beseen',.can be. inserted in position inthe bottomorsocket membengand removed ther-ei r'OIIl., and-when this is done andwithdrawl i,- 1 from, the 'terminals according. to' th e. position-ofthetop or--pl-ug member 2', For this purposev a'jhandle 1B'.

ing 'securedy tout he top of ltheplu' if member-f2,

.downwardly s3; ssto permit its being Fig. .1; Fig.y4"is st .vlevpartially in section s thecli s' 13,1111( [passed across grasped -redilyfrom below ThisJis/edvan'- tugeous, o;f 1col rse, on topofa' ole:

The fuse 1 ,'is'

of. high- 'refraci ory limestone end' s ilia' th have: these? qiliqeffect? whetevei. 1 This l-isfo 'when the' devised@ Pf I shownfeiitended down 4 lower pon-1:; 1oo

mishwn v'30 llating material, such as porcelain.

member 22 Uis hung or suspendedjby wiresv has tQWitlistand' not onlythehigh potential generator. These materials' which I have mentioned,limestone/and silica', have this highly ,desirable effect, and-have beenfound to have'tliie'efgualities only after much diligenoa,'innesti'gation and experimentation on T hetwo blocks or slabs, 19 and20, raWings are arranged in posiiberQ f ,`the .d evice. Ther upper one19, is

. carried-by 4al'lfl .preferably securely fastened' .xtoan'interned-iatelayer or block y21 of ma- 1"5" .trial, preferably asbestosi Acombination :fof limestone 'orsilica and asbestos-in thisgone'tfalwayfis very advantageous hecauseof the high heat resisting,insulating, and"'non combustiblecharacter of asbestos, It is not Yf'zaiessential to have this asbestos used in this '.f-Way, .as theldevice could beconstructed and 'f5- r-.erab1y' madeqo'f insulatingmaterial, such for example as porcelain. `The other 'slab or block oflimestone .or silica is preferably carried'by and permanently secured'toa bot- 1 tonimember 22, which may also bejof ir'lii- 2 3', forming partsof springs 2l'-v,-'2l"secured bythe screivsli to the upper end of theplug vportionho'f the top' member 2. *A1 plurality '35.- .of 'thesesprings are used, twobeing shown at diagonallyopposite corners ofv theplug 2lv ofjthe top member. The fuse can be put *inf place by fasteningits ends tothe clips I 13---113-.by meansof the screws 16--16, and

o imay-jbe extended down and across the-plug 1,2? and between themembers 19 and 20. vv.Thebottom'member 1 isl preferably provided withlaterally vextmding su1`1porting, ,"earsr27 having grooves or slots'28,to receive.; 'sci-eva'bolts. {\vhich may be-applied to thel1'post--tosupp'ort the device. T his vpermits -thevbolts4 to be rst :putinto positionvandn screwed. nearly to @their ultimate position vWithoutvhaving.l to support* the weight of. 'oxthe'fnse device, andvthen'when-they ',are so" inse'rtedjthe device can be placed uponthemand thebolts Screwed home.' The top 2 is lpreferably provided withvskirts or pettin 'i -coats`29 for r'ainprotection. `Th'e'plugQa is 55.. desirabl'y providedwith vve rtically extend.

i. ing grooves 30-30, arranged on each side, "and the'fnse holdingmeniberfs, 21 and 22 x arefdesirabl'y provided"withv 'similar grooves,-

, 'thusgform-in'g continuous grooves from' top toV tobottom of the plugportion -of the device.

v "I-he-socliet member -1 is* provided-with prof'jectingx'rdgesfl",adapted .to fit into the "llgroovesw 30-,.30', and "so guide the uppery-femeinb'en 2 .when itis-.inserted into, an with- 6 5 `ldrawn fromthelower one. The ,fils'e holdi-- Y f i e tion'attheloiver portlonoffthe plugmems 'ous arrangement being to make the body of 36 and aninclined top 37.1 Vdesirably made of-'porcelai/n or other suitablematerlal, and is preferably constructed-withv Iby forming a. stoporbutton .to limit the insertion of the plug member ofthe device.

The base or socket member 1 is desir-ably made of different materialjoined orconnected together in convenient'Sectional form or arrangement.In the, device as shown this is-brought about by inserting a piece 1, ofmaterial different from the rest of the .base memberas shown in Fig.'1.This sectional piece 1, may be fittedm place in any desired manner, asfor example by dove-tailing it as shown in -said ligure. This sectionalor insert piece l? may vbe of suitable material as compared with thebalance ofthe receptacle, a convenient and highly advantage-v thereceptacle or base 1, -of porcelain, and l this insert 1 of silica,limestone or other compound. Inbuilding av receptac e in this manner, Ifirst forml vthe. insert member Lux. with suitable4 projectingl tonguesas shown. Then the p orcelainl pieces 1' are moldedupon g5 the piece 1nand the whole is baked. It-is t obvious that tl1e.groo\''es might beplaced in piece l and the tongues in piece 1 Yif so desired; Also othermethods of' manufacture may `be .-ernployed. This.construdtibn has theeffect of increasing the resistance ofthe structure between the fuse'terminals and -v thereby prevents vlealca e of the cut'rent betweensuch terminals. he construction also has'the advantage ofallowinglthes'ize of the base to be varied by the use o fdifferent sizedinserts. This 'sectionall'idear can be carried to further lengths ofcourse.' if desired. The-sectional insert l* is'vuntlerstood to vbe acontinuous `strip forming' circumfen ential section' of the base member1-. f Referring now to tlfe constructionl shown in Figs. .6, 7 and 8Ifi'llustrate a casing 35 of general rectangular .cross section, Vas fshown in Fig. 7,. and havi a slopii'g floor his casing 35. is v f acircumferential belt or Stri'pf 38 of. dilerent material, 'such assilica or limestone, for the purpose and advantage asset forth inconnection with' the preceding construction.

-The.fioor 36 is provided Withjadischarge outlet or'- opening ,1.39,normallyclosedhy plug40. The device isintended t'`contai`ny 'foil 41,and thisvslopingfloorand outlet arrangement areintended to serve as adrain to Apermit drawing-o1of fthe oil from time to time as maybefrequred 'in practice; A

swingil'ig'cover 42jpivoted'to theftoptporton-lso f l to clips holdingsaid compression members" within said" casing, said device comprising apair of compression members between'which the fuse is arranged, springmeans attached ether,l and terminals secured to one of said members the`fuse being secured to said terminalsand co rating' terminal jawsl onthe casin where y said fuse carrying device can removably mounted inplace in the casing. y l

'7'. A device of the claspecified comprising in' combination, av casing,having` an opening in one `side .near the top thereof, a fuse holdingdevice arranged vto lit in the lower portion of. s aidfcasing below saidopening, means fordetachably mounting said fuse holding device in thelower por'- tion of said casing, a. closure/for said opening, anVaperture in said closure, and means projecting through' said openingand through the aperture in said closure when closed, for removing andreplacingsaid fuse holding device. v

8; A fuse device comprising a casinghav-` ing one of its vertical wallsprovided with a side opening sufficiently above the bottom Y to form ali uid chamber below said side opening, an adapted for insertion intoand .withdrawal from said casing through said side opening, said casingan'd fuse carrying device' being provided with coperating. contactmembers' to removably mount. said fuse carryin de'-y Vvice in suchposition'that the fusew1l be supported in position insaid liquid chamberformed below said side opening.

9. Av fuse device comprising acasing having a side opening located.sufficientlyI above the bottom of the casing to form a liquid chamberbelow said side opening, contact members mounted on theside wallbelowsaid openingand alsoonthe opposite side v wall, a fu supporting device'provided with contact members adapted to coperatie with said sidewallcontact members, to holdsaid fuse, supporting device in position withthe said `closure when closed 'englging afuse supportingr device' thesfideopeni -fuse in' said liquid chamber, a handle on said fusesupporting device rejecting throuh said opening when the use supportingevice is in position in the casing,and a downwardly extending closurefor lsaid openimnugI handle. y

\ 10. A device of the'class'described comprising a casing havingoppositel walls wnlcn' lation to eachlotheigand havingV one of itssideywalls lprovided with an 'aperture contact 'members mountedwiththroghwhch a fusible member mayl be in the casing, aperturesprovided in the cas:

ing through which connections with` said contact members are made,circumferential 'ribs rovided upon said casing, and a clo-` sure or saidfirst' mentioned aperture being hinged lto the, 'upper' wall of thecasing` beyondone edge ofthe casing and having' a flange depending fromthe said edge over the yfirst mentioned aperture.

*1-11. ,Afusedevice comprising in combination, a casingone of whosesides is higher than theA other .and isV provided with an. openingsufficiently .above the Casing bottoni to form -a. liquid lchamber belowsald opening, a fus' holding device for insertion into the 1 casingthrough said'v side openin and contact'members on the, casing an fuse.holding device to permit the latter to be re'- movably 'mounted inposition in the liquid chamber, andthe s ace in the high side of thecasing being su cient to permlt v.the fuse holding device to be liftedfrom its mounting and then moved sidewisel out through In-witness Wereof, I hereunto subscribel my name 1911.

ALFRED HERZ.

Witnesses:

A. LYDA JONES, Ham-Joins,-

this 21st, day of January, A: D.,

55 I are inclined -mopposlte dlrections with rei

